Results 61 to 70 of about 1,114,424 (221)

Green light emitting hydrophilic CdTe quantum dots with magic size signature

open access: yesNext Materials
Synthesis of highly stable green light emitting CdTe quantum dots in aq. medium is discussed. The absorption spectroscopy revealed formation of dots of the size about 4 nm.
Priyanka Phalswal   +4 more
doaj   +1 more source

Chemical Traps of Singlet Oxygen as Investigation Method of Mechanisms of Photo-Dynamic Therapy [PDF]

open access: yesЖурнал нано- та електронної фізики, 2013
The processes in photodynamic therapy using semiconductor nanomaterials, namely, quantum dots as photosensitizers were considered. The spectral characteristics of semiconductor quantum dots (CdTe coated by TGA), as well as processes with participation of
I.V. Berezovska   +2 more
doaj  

Experimentally Determined Spatiotemporal Charge Carrier Dynamics for the Development of Particulate Photocatalysts

open access: yesAdvanced Energy Materials, EarlyView.
This review looks at the different experimental techniques that measure spatiotemporal charge carrier dynamics. This information is viewed in the context of particulate photocatalysts, outlining the insights these techniques provide and how they advance our understanding.
Sutripto Khasnabis, Robert Godin
wiley   +1 more source

CdTe and CdSe Quantum Dots Cytotoxicity: A Comparative Study on Microorganisms [PDF]

open access: yesSensors, 2011
Quantum dots (QDs) are colloidal semiconductor nanocrystals of a few nanometers in diameter, being their size and shape controlled during the synthesis. They are synthesized from atoms of group II–VI or III–V of the periodic table, such as cadmium telluride (CdTe) or cadmium selenium (CdSe) forming nanoparticles with fluorescent characteristics ...
Suzete A. O. Gomes   +6 more
openaire   +3 more sources

Boosting Bifacial Output Power of Ag‐CIGS Solar Cells by Optimizing ITO Back‐Contact Thickness for Tandem Applications

open access: yesCarbon Energy, EarlyView.
Optimized ITO back contact with pre‐Ga supply growth and Ag incorporation suppresses GaOx formation and interface recombination in bifacial CIGS solar cells. The devices achieve 17.25% front and 5.77% rear efficiency, delivering record bifacial power density up to 32.26 mW cm−2 in 4T perovskite/CIGS tandem architectures under enhanced albedo ...
Amanat Ali   +13 more
wiley   +1 more source

Modifying the Fluorescence of CdTe Quantum Dots by Silica-coated Gold Nanorods

open access: yes, 2016
The influence of Au nanorods coated with a silica layer on the photoluminescence (PL) of CdTe quantum dots (QDs) was investigated. The Au nanorods were prepared using a seed-mediated method.
Ning Zhou   +3 more
core   +1 more source

Increased efficiencies on CdTe solar cells via luminescence down-shifting with excitation energy transfer between dyes [PDF]

open access: yes, 2012
The external quantum efficiencies of CdTe solar cells fabricated by the atmospheric pressure metal organic chemical vapour deposition (AP–MOCVD) method have been measured with one and two dye doped luminescence down-shifting (LDS) layers on top ...
S.J.C. Irvine   +20 more
core   +1 more source

Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight

open access: yesNanoscale Research Letters, 2019
Hollow and heterostructured architectures are recognized as an effective approach to improve photocatalytic performance. In this work, ternary TiO2/CdTe/BiOI with hollow structure was constructed via a step-by-step method. In addition, the effect of TiO2
Xiaofei Qu   +7 more
doaj   +1 more source

Flexible Direct‐Conversion X‐Ray Detectors: From Emerging Materials to Conformal Imaging

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This comprehensive review analyzed the performance, challenges, and future directions of four emerging material systems for next‐generation flexible direct‐conversion X‐ray detectors: organic semiconductors, perovskites, metal–organic frameworks, and inorganic metal compounds.
Haipeng Di   +11 more
wiley   +1 more source

Quantum dots as new-generation fluorochromes for FISH: an appraisal [PDF]

open access: yes, 2009
In the field of nanotechnology, quantum dots (QDs) are a novel class of inorganic fluorochromes composed of nanometre-scale crystals made of a semiconductor material.
Ellis, Michael   +5 more
core   +1 more source

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